Ok, put in my OEM nav last night. It was easier than I thought. Everything works great on it except the mic, which my local car stero shop is going to fix. But on my way to work this morning I noticed that my backlight on the cruise control and the backlights for the headlights and panel dimmer were not working? Is there a fuse location for these? I thought I did a great job till that little problem. I read the owners manual but to no help. Let me know if you have any suggestions for me. Thanks

 

Any chance you knocked a wire off while you were installing? I would think what you were working on had nothing to do with the Nav...

Get any pictures? Curious to know if the harnesses were already there from the factory.

While we are speaking about lighting, are the mirror controls and the memory buttons lighted? Mine have never been since I got the truck.

 

the memory buttons and mirror controls are not illuminated, unfortunately. methinks they might change this in future MYs since many people have complained =\

 

Thanks. I didn't think they were. It has been a minor complaint of mine since I need to pull in the mirrors when I drive it into the garage at night.

 

First thing you should do is hold down buttons 3 and 6 on the nav unit. It will pull up a diagnostic menu and engage the annoying speaker self test which you can exit from by pressing the on screen button. from the on screen menu,check to see if any diagnostic codes got thrown from the canbus.

Also if you haven't already, you may need to get the ACM programmed/reprogrammed. ACM is the audio control module.

 

went outside and did this. The only one that did pop up was that the rear camera is not functioning? I can't hook the mic because I dont have the pins needs to add the wires to the harness? Any way I can rig this up to work? I had it working for a moment, but after i shoved it in the dash, it quit. I'm bummed out about my backlights not working on the headights and steering wheel? Where is the fuse for that? That 3and 6 thing was pretty trick FYI thanks!

 

We'll get this all to work! No worries. I need to take a look at some of the wiring schematics and a couple other PIDs on my VCM to figure out what else is going on - it may be fuse related but it is more likely CAN bus related since just about all the lighting is controlled by the CAN bus. I'll post back some more info tonight (west coast time zone).

The good thing is the nav system works and no codes are being thrown! On a complete aside, do you have satellite radio activated as well?

 

Ok thanks alot. Its just the back lighting for the Headlight the dimmer for the instruments and the steering wheel controls. Everything else works great except for the mic, which im going to tackle tonight. Yes, sat radio is working. I took out the DLP by the brake pedal and mounted the nav amp there. Great location for it. Please try to figure out my problem for me, because I have no clue. Heck, Ill pay ya! Thanks again.

 

Okay here is the deal - the backlighting is all controlled by a microcontroller in the Body Control Module. For our purposes there are two interior lighting systems that are both driven from the same power circuit. One is the backlight system which controls the lighting you are having issues with. The second lighting system includes the interior dome and map lamps.

If both systems are not working, check the 15 amp fuse denoted F12. It should be located on the BCM on the passenger side kick.

If your dome light and map lights work, then the issue is with the BCM control over the transistor driving the backilighting system.

Check your interior lights and/or fuse F12 and let me know what you find.

 

The map and dome lights work. The backlights for the climate and radio work, it's just the other ones I've mentioned. Also just to ask, when I had to wire in the mic to the nav. I have done exactly as the instructions say but stil nothing. Is there a fuse for the mic?

 

Okay what about backlighting on the following:

Upfitter switches
Traction control switch
Drive selector rotary ****
Overhead console switches (if you have them)

 

One thing to check are the dimmer settings in the engineering test menu. Hold the left steering switch down button continuously while turning the ignition to on. After a few seconds you will enter the test menu and can scroll to one of the field screens near the end where the dimmer settings are. You will also see there is a screen in here for continuous DTC's - might as well check this out too before diving into my next few comments/suggestions:

Just curious did you have to splice any connections when you were doing the install or was it all plug and play?

In any case, assuming you have back lighting to the above posted components then likely the issue is either physical connector(s) and/or factory splices. The backlighting for the headlight switch comes through connector C205. The dimmer switch is connector C2065 and the steering wheel controls are connector C218A. Now, while connectors 2065 and 205 are near each other, the steering control connector is in the steering column housing. Unless you had reason to disconnect any of these at some point, I'd say these are the unlikely sources of the problem.

Which leaves a splice location. The good news is all of the backlit components get spliced together at the same location. The bad news is you will have to pull the radio to check the splice.

It should be in a big thick bundle slightly to the left and slightly above where the 3 nav unit connectors are behind the radio. You are looking for a bunch of violet with grey stripe wires in that big fat bundle - they may be in heatshrink or some other wrapping. According to the schematic there should be 9 wires spliced together here. One brings power from the BCM, the remaining eight supply power to each component requiring backlighting. If you have a continuity tester, you can pierce the insulation before and after the splice location to determine which wires are not connected properly. Sometimes if the splice pulled apart you can try the old "squeeze the splice" to see if that at least verifies the splice is the issue.

 

As for the mic - it connects to the APIM or Accessory Protocol Interface Module otherwise known as the SYNC module rather than the radio.

Assumption on my part - if you are installing a mic then I presume you also needed to install a new APIM? If so, push the 3 and 6 buttons and look at the system info screens - your SYNC module and part number should show up. If its not there or if you have not installed the APIM then I don't believe that mic is going to do you any good (at least based on the schematics).

However, you commented above that you did have it working for a moment until you shoved the radio back in and then it quit - is this in reference to the backlighting or the mic?

Hhhm, is there any way you can post the installation instructions they included - I am wondering if the instructions are consistent with what the schematics are showing me.

 

Based on your eariler post, could he have pinched the wire bundle you mentioned (It should be in a big thick bundle slightly to the left and slightly above where the 3 nav unit connectors are behind the radio.). I saw that bundle when I did my Ford LockPick.

 

Absolutely this is possible, perhaps even probable given how tight for space it is back there.